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util: virFileIsSharedFSType: Simplify shared fs type declarations

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Use approach similar to virFileIsSharedFsFUSE to declaratively handle
the filesystem magic numbers mapping to libvirt's fstypes.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2022-09-05 14:28:29 +02:00
parent 0c51bc31bc
commit 3aa7c75fec
1 changed files with 20 additions and 28 deletions
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48
src/util/virfile.c
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@ -3324,6 +3324,7 @@ virFileRemoveLastComponent(char *path)
struct virFileSharedFsData {
const char *mnttype;
unsigned int magic;
unsigned int fstype;
};
@ -3394,6 +3395,19 @@ virFileIsSharedFsFUSE(const char *path,
}
static const struct virFileSharedFsData virFileSharedFs[] = {
{ .fstype = VIR_FILE_SHFS_NFS, .magic = NFS_SUPER_MAGIC },
{ .fstype = VIR_FILE_SHFS_GFS2, .magic = GFS2_MAGIC },
{ .fstype = VIR_FILE_SHFS_OCFS, .magic = OCFS2_SUPER_MAGIC },
{ .fstype = VIR_FILE_SHFS_AFS, .magic = AFS_FS_MAGIC },
{ .fstype = VIR_FILE_SHFS_SMB, .magic = SMB_SUPER_MAGIC },
{ .fstype = VIR_FILE_SHFS_CIFS, .magic = CIFS_SUPER_MAGIC },
{ .fstype = VIR_FILE_SHFS_CEPH, .magic = CEPH_SUPER_MAGIC },
{ .fstype = VIR_FILE_SHFS_GPFS, .magic = GPFS_SUPER_MAGIC },
{ .fstype = VIR_FILE_SHFS_ACFS, .magic = VIR_ACFS_MAGIC },
};
int
virFileIsSharedFSType(const char *path,
unsigned int fstypes)
@ -3403,6 +3417,7 @@ virFileIsSharedFSType(const char *path,
struct statfs sb;
int statfs_ret;
long long f_type = 0;
size_t i;
dirpath = g_strdup(path);
@ -3448,34 +3463,11 @@ virFileIsSharedFSType(const char *path,
VIR_DEBUG("Check if path %s with FS magic %lld is shared",
path, f_type);
if ((fstypes & VIR_FILE_SHFS_NFS) &&
(f_type == NFS_SUPER_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_GFS2) &&
(f_type == GFS2_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_OCFS) &&
(f_type == OCFS2_SUPER_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_AFS) &&
(f_type == AFS_FS_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_SMB) &&
(f_type == SMB_SUPER_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_CIFS) &&
(f_type == CIFS_SUPER_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_CEPH) &&
(f_type == CEPH_SUPER_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_GPFS) &&
(f_type == GPFS_SUPER_MAGIC))
return 1;
if ((fstypes & VIR_FILE_SHFS_ACFS) &&
(f_type == VIR_ACFS_MAGIC))
return 1;
for (i = 0; i < G_N_ELEMENTS(virFileSharedFs); i++) {
if (f_type == virFileSharedFs[i].magic &&
(fstypes & virFileSharedFs[i].fstype) > 0)
return 1;
}
return 0;
}